Παραπομπή APA
Watcham, M., & Harding, B. (1974). Office practice: Book two (2nd ed.). London: McGraw-Hill.
Παραπομπή Chicago StyleWatcham, Maurice., and Beryl Harding. Office Practice: Book Two. 2nd ed. London: McGraw-Hill, 1974.
Παραπομπή MLAWatcham, Maurice., and Beryl Harding. Office Practice: Book Two. 2nd ed. London: McGraw-Hill, 1974.
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